Alarm-lock.



No.- 732,282. PATENTBD JUNE 30, 1903.v

W. EDWARDS.

ALARM LOCK.

APPLICATION FILED NOV.l '7, 1902. 4 N0 MODEL. 4 SHEETS-SHEET 2.,

No. 732,282. PATBNTBD JUNE a0, 1903. W. EDWARDS.

ALARM LOCK.

APPLICATION'PAILED NOV. 7, 1902.

N0 MODEL. 4 SHEETS-SHEET 3.

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' PATENTBD JUNE 3.0, 1903.

W. EDWARDS. ALARM LOCK.

APPLICATION FILED Nov. 7. 1902.

No MODEL. l' 4 SHEETS-SHEET 4.

MINIMUM @W "Hlmlmmu mmm' Le] 58 l Witwen@ UNITED STATES Patented June 30, 1903-.

WILLIAM EDWARDS, OF EASTON, PENNSYLVANIA.

ALARM-LOCK.

SPECIFICATION forming part of Letters Patent No. 732,282, datedrJ' une 30, 1903.

Application tiled November 7, 1902. Serial No. 130.406. (No model.)

To @il whom, t may concern:

Be it known that l, WILLIAM EDWARDS, a citizen of the United States, residing at Easton, in the county of Northampton and State 'of Pennsylvania, have invented certain new and useful Improvements in Alarm-Locks; and I do hereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Hy invention relates to lock construction, and more particularly to a combined burglarproof lock and an alarm mechanism operatively connected together in such a manner as to produce a lock which will be found to be reliably efficient for meeting all of the various requirements placed upon a safety-lock, inasmuch as it will be found that the lock will not only produce an electrical connection with a gong, whereby an alarm will be set oft' by proper adjustment, but the gong may be utilized as an ordinary doorbell to ring when the knob is turned, thereby dispensing with a separate apparatus or door-bell proper.

The prime object of my invention is to so combine with the lock mechanism proper an appliance adapted to cooperate with such mechanism as to in some instances continuouslyring a bell or gong properly located in order to give out an alarm that the lock is unauthorizedly manipulated and at other times to operate said bell as an ordinary doorbell, according to the adjustment which may be made of certain controlling devices connected with the lock and bell, as will be hereinafter specifically pointed out in the following speciiieation and illustrated in the accompanying drawings, which are made a part of thisapplication, and in which- Figure l shows a door provided with my improved lock attachment complete. Fig. 2 is a detail view on a larger scaleV from that shown in Fig. l, showing my look and cooperating parts. Fig. 3 is a similar view to that presented in Fig. 2, showing the interior parts of the lock proper employed to coperate with the gong-actuating devices. Fig. 4 shows the opposite side of the lock presented in Fig. 3. Fig. 5 shows a front edge view of the lock and its casing ready to be seated in a suitable mortise in the door. Fig. 6 is a top plan. view of the gong-controlling devices illustrated in detail. in Figs. .2 and 3. Fig. 7 is a side view of the latch controlled by the door-knob. Fig. S shows a transverse section of the latch shown in Fig. 7 and showing the controlling-fin gers in full lines. 9 is a detail showing the two-part adjustable shank.

The various cooperating parts of my inven tion will be designated by reference-numerals, the same numeral being applied to the same part throughout the several Views.

In materializing my invention I provide, as is common, a suitable casing l, of any preferred character, within which I locate the operating parts of my improved lock proper, consisting in the present instance of what l will designate the night-latch 2, which is the saine as ordinarily controlled by the door-knob, and I also provide the lockingbolt 3.

It will be hereinafter made clear that the entire mechanism of my improved alarm-lock is operated by one key only, such key and eon operating devices being so formed and combined as to enable the operator to securely lock both bolts and also set the mechanism, so that the gong will ring when the key is thereafter introduced into the keyhole and turned or partly turned. By thus making it possible to operate both bolts with one keyI am enabled to entirely dispense with the necessity of two separate keyholes and two distinct keys.

By reference to the drawings it will be observed that I have provided the lever et, which is pivotally held in place upon the post 5 and extends downward alongside of the keyhole 6, while the upper end curves around the shankseat 7, through which extends the shank connecting the door-knobs, the curvature of said lever being designated by the numeral 8, said curvature being provided with the terminal 9, which rests in a recess provided upon the under side of the night-latch 2 and by means of which said latch is longitudinally moved by the action of the key. The night-latch is held normally outward, as is common, by a suitable spring lO, and the inner end of'said latch is seated between the guiding-plates ll, whereby said latch is left' free to be moved longitudinally, as will be hereinafter clearly Fig.

set forth, it being understood that the outer end of the latch extends through a suitable aperture in the casing, as is common. In like manner a suitable post 12 is provided to hold the inner end of the bolt 3 in place, said post being rigidly secured to one side of the casing and extends loosely through a slotted aperture 13, formed in the bolt 3, while the outer end of said bolt is properly reduced, as indicated by the numeral 14, so as to extend through a suitable aperture in the casing and engage with a recess 15, provided in the door-jamb, whereby the door may be securely held in place when said bolt is thrown outward.

My improved lock is reversible, inasmuch as the night-latch can be readily taken out from between the controlling-fingers 16 and 17, which are carried by the shank-seats 7 and 7 n, it being deemed preferable to make said seats in two parts,whereby the shank, formed' in this instan ce of two separate parts 18 and 19 and provided with a threaded coupling 20,may be so seated relative to said parts 7 and 7 l that one or the other of the fingers 16 or 17 may be operated according to which knob is turned.

I also provide the detent 21 ,which is pivoted upon the post 22 and is provided with the right-angled extension 23 at its inner end, adapted to swing downward in the path of the finger 17 and prevent said finger from being moved by the door-knob, a post 24 being properly located upon the opposite side of the iinger to limit its movement in that direction. The detent 21 is provided with an extension or stud 25, passing through the casing, whereby it is placed fully under the control of the operator.

I alsoprovide, preferably at the upper side of the lock, an auxiliary bolt or piston 26, slidingly mounted in the bearing 27 and held normally inward by the spring 2S, and in order that said bolt may be controlled and shot outward when the bolt 2 is withdrawn I provide therefor a suitable controlling-lever, the lower end 29 of which extends downward in. the path of the inner end of the bolt 2, while the upper end 30 of said lever fits into a recess formed in the end of the bolt or piston 26. The said lever is pivotally mounted upon the shaft 3l, the ends of which are flattened and adapted to extend into slotted openings in a contiguous part of the casing, one of said ends beingl provided with a suitable aperture in which is seated the controlling handle or button 32, the shank of said button being of sufficient length to extend through the slot 33 provided in the door. It is therefore obvious that by moving the button or handle 32 upward the end 29 of the lever will be drawn out of the path of the night-latch 2. It is further obvious that when the end 29 of the lever is moved downward in the path of the latch 2 said latch will act upon the lever and cause the piston26 to be shot outward, and I utilize this outward movement of the piston to act upon the gong-ringing mechanism, as I shall now set forth inu detail.

Located in the casing of the door at a point directly opposite the end of the piston 26 (when the door is in a closed position) is the longitudinally-movable rod 34, loosely held in its casing 35, which is provided with the slot 36, through which a screw or lug 37 carried by the rod 34, extends, said screw or lug having secured at its outer end the detent 38, which is designed to engage the bar 39 by means of one of the recesses or notches 40. Then therefore the piston 26 is forced outward by the operation of the lever 29 30, the end of said piston will strike the beveled end of the rod 34 and force it inward against the tension of its springl 41 and incidentally move the bar 39 inward through the operation of the detent 3S and force said bar against the lever 42 and thereby cause the spring-contact 43 to engage the circuit-terminal 44 and thus complete the circuit and ring the bell 45, which is provided with a suitable battery 46 and located at any desired point. It will of course be understood that instead of the lever 42 and the spring-contact 43 any suitable equivalent thereof may be substituted. In order to set up the continuous ringing of the gong, as will be desirable to give an alarm at night, I provide the detent 47, controlled by the spring 48 and pivotally held in place by the stud or screw 49, and thus adapted to engage one of the recesses or notches 50 provided on the lower edge of the bar 39. lf it is desired, as during the day-time, that the bell shall not have a continuous ring, I am enabled to nullify the action of the detent 47 by the sliding latch 51 located in a suitable housing 52 and provided with the controllinghandle 53. By this arrangement of the parts just described it is obvious that when the detent 47 is left free from the control of the sliding catch 51 the bar 39 will be held when moved to the left and thereby set up the continuous connection between the spring-terminal 43 and the fixed terminal or post 44, and the bell will therefore ring until the detent 47 is disengaged and the bar 39 moved manually or otherwise to the left, whereby the ICO llO

lever 42 will be left to assume its position against the stop 54 by the action of the spring 55 or the equivalent thereof.

It will be observed that I have provided a complete lock of the character specified composed of a minimum number of parts, each part being reliably held to its place without fear of falling out by jars incident to slamming the door or becoming broken from the same cause. It is furthermore apparent that my improved lock is very readily reversible in the shortest possible time, inasmuch as all that is required is to lift out the linger 17 and turn the bolt 2 and replace said linger. lt will be seen that in the present instance I have provided the bar 39 upon its upper edge with three notches and a plurality of teeth upon its loweredge, and it maybe stated in eX- planation of the operation or manner of using the same that inasmuch as the top detent controls or forces the movement ofthe bar 39 the lower detent 47 `will conserve said movement or hold it when thus forced backward, provided said last-mentioned detent is left free to act by the catch 51, as hereinbefore set forth.

l/Vhen it is desired to lock the door from the outside and at the same time prevent the bell from ringing while performing the operation, the detent 38 is placed in the first notch to the right on the upper edge of the bar 39, when the act of closin g the door will cause the rod 34 to be moved by the outward thrust of the piston 26, causing the detent 3S to drop into the second notch. The key may then be inserted and caused to thrust the bolt 3 into a locked position, and through the medium of the lever 4 the rod 34 will be moved inwardly, so that the detent 38 will drop into` the third notch. This permits the door to be closed and locked without ringing the bell, as the rod 34 will not be moved in far enough to close the circuit when the detent is.in either the first or second notch. `When the detent rests in the third notch and the door is unlocked by the key or by turning the knob, the circuit will be closed and the bell rung continuously. The notch or recess 56 formed in the lower edge of the bolt 3, together with the tumblers 57, are in such relative position to the keyhole that said bolt 3 cannot be thrown outwardly or inwardly without bringing the key into contact with the lower end of the lever 4, and it will be obvious by reference to the drawings that any attempt to unlock the bolt 3 by the insertion and turning of a key will act upon the lever 4, and by reason of the extension 9 said lever will withdraw the night-latch and force it against the lower end 29 of the lever which controls the piston 26, thereby forcing said piston outward in contact with the rod 34, forcing' the bar 39 against the lever 42, and causing the circuit to be closed and the bell continuously rung, inasmuch as the detent 47 will retain the bar 39 in an extended position to the right even after the key has been withdrawn. In like manner the bell will be rung continuously or otherwise, according to the position of the catch 5l, by the simple act of turning the door-knob, thereby fitting the lock as an ordinary door-bell. During the day it will be desirable to' move the catch 5l outward, so that it will hold the detent 47 out of engagement with the bar 39, thus permitting the bar 39 to be freely moved backward by the action of the spring 55 when the doorknob is released.

By the construction and combination of parts herein described it will be seen that I have provided an alarm-lock of reliable eiiiciency, inasmuch as the parts may be so set' or manipulated as to provide that the gong will be continuously rung or will be rung for a time being only as the door-knob is turned or the key inserted.

During the night it is desirable to draw the catch 5l within its housing, thus leaving the detent 47 free to act upon the notches of the under side of the bar and insure that any thrust of said bar to the right will be there held and provide that the contact-points 43 and 44 will be held in engagement with each other and ring the bell continuously until the detent 47 is moved sufficiently to permit the bar 39 to move backward into its initial position.

. Inasmuch as the shaft or rod 3l is movably mounted in suitable slots provided in the casing by means of the handle 32, the stem of which extends through the slot 33, the operator may very readily so dispose the end 29 of the piston-controlling lever thaty said end will remain out of or be disposed within the path of the knob-latch 2, as may be desired by the operator. When, therefore, it is desirable to entirely disconnect the lock from the circuit-controlling and bell-ringing devices all that is necessary to be done is to move the handle or equivalent device 32 upward,when the lock will subserve the purpose of an ordinary, efficient, and` reliable lock. The operator, it is obvious, may therefore as quickly and readily reestablish connection between the lock proper and the circuit-closing and bell-ringing devices by again moving the handle 32 downward and disposing the terminal 29 of the piston-controlling lever in the path of the knob-latch to be operated thereby when the same is retracted within the casing, either by means of the knob or by the key acting upon the lower end of the lever 4.

Believing that the advantages and manner of constructing my improved alarm-lock have thus been made fully apparent from the foregoing specification considered in connection with the accompanying drawings, further reference is deemed unnecessary; and while I have described the preferred combination and construction of parts deemed necessary in carrying out my invention I wish to comprehend such equivalents and substitutes as may be considered as fairly falling within the scope of my invention.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, isl l. In a lock of the character specified, the combination with a suitable casing, of aknobcontrolled latch and a locking-bolt; a lever pivoted within the casing and having its lower end adjacent to the keyhole and its upper end in a recess in the knob-latch; a piston and devices intermediate the knob-latch and vpiston adapted to throw the piston outward when the latch is drawn within the casing and circuit-closing devices coperating with said piston adapted to ring a bell in said circuit when said piston is thrust outward by the withdrawal of said knob-latch all com- IOO bined substantially as specified and for the purpose set forth.

2. The hereindescribed alarm -lock comprising a suitable casing; a knob-latch and a bolt located within said casing; a piston and suitable means to operatively connect the piston and knob-latch whereby when the latch is drawn within the casing the piston will be thrust outward, in combination with a rod 34 registering in position with said piston; a circuit-closing device and a bar having` notches upon its upper and lower edges and a detent carried by said rod adapted to act upon the upper notches of said bar and close the circuit substantially as specified and for the purpose set forth.

8. The herein-described burglar-alarm lock comprising a suitable casing; a piston slidingly mounted in said casing; a knob -latch and locking-bolt; a shank-seat and means intermediate said shank seat and latch adapted to withdraw the latch in the casing when the knob is turned and manually-controlled devices connecting the piston and latch adapted to be thrust in the path of the latch as it is drawn in the casing whereby the piston may be thrust inward or outward as desired, all combined substantially as speciiied and for the purpose set forth.

4. The herein-described circuit-closing devices comprising a sliding rod 8a; a sliding` bar 39; a detent carried by said rod and coperating with said bar and an auxiliary detent 47 and means to limit the action of said detent whereby said bar may be left to freely return to its normal position or be locked by said detent in an extended position, all combined substantially as specified and for the purpose set forth.

5. The herein-described alarm attachment for locks consisting of a suitable actuating member 34C; a lever carrying a contact-spring; means intermediate said lever and said rod adapted to act upon said lever whereby said spring-contact will be moved and the circuit closed and suitable devices carried by the lock and actuated by the operation of the lock adapted to move said rod and bar, all substantially as specified and for the purpose set forth.

G. In a burglar-alarm lock of the character speciiied, the combination with a suitable casing of a locking-bolt and knob-latch located in said casing; means to hold said latch normally outward; an electric circuit having a bell and a normally retracted piston located in the casing and operatively connected with said knob-latch whereby when the knob is turned the piston will be thrust outward and thereby close the electric circuit and ring a bell7 all combined substantially as specified and for the purpose set forth.

7. In a lock of the character specified, the combination with a suitable casing of a knoblatch and bolt located therein; a piston normally retracted and slidingly mounted in said casing, and a movable lever connected to said knob-latch and piston whereby said lever may be moved in or out of the path of said latch and the piston operated or left idle as desired., all combined substantially as specifi ed and for the purpose set forth.

S. The combination with suitable lock mechanism of the herein-described circuitclosing device comprising the bolt 3i normally extended by a suitable spring and carrying a detent 38; a bar 30 longitudinally movable and having notches upon its upper and lower edges, said upper edge being disposed in engagement with said detent; a locking-detent engaging` the lower edge of said bar and a movable circuit-closing device adapted to cooperate With the end of said bar whereby the device will move the contact-points of the circuit in engagement with each other substantiallyas specified and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

VILLIAH EDWARDS.

Vitnesses:

J. M. EDWARDS, MoIsE RIvoLLIER. 

